Chapter 2Unpacking and Installing the Switch2 - 4• ARX-2500 (1U)• Accessory Kit (packed under the switch)4. Verify the contents of the Accessory Kit against the following list:• Slide-rail kit (pre-packaged, includes instructions) (1)• Rack-mounting ear bracket kit (1)• Bubble bag containing:– Rail-locking brackets (2)– #6-32 pan head screws (4)– #8-32 pan head screws (2)– RJ-45-to-DB9 adapter (1)– Power cord retention clips (2)– Cross-over cable (8-ft. / 2.4384-M) (1)– ARX-2500 Quick Installation card– ARX-2500 Hardware Installation GuideIf you ordered the optional optical tranceivers, they are shippedin the Accessory Kit in their own box. The single box contains 2optics.In addition to the installation card and the installation guide, consultthe ARX Hardware Reference Guide, which includes systemspecifications and requirements and details about the LEDS, cables,external interfaces, power supplies, internal disk drives, and manyother hardware details. This guide is available in PDF form from theARX Manager GUI.5. Read the instructions for determining which rail kit to use atDetermining Which Rail Kit to Use, on page 2-4.In particular, do not use the instructions that come with the slide-railmounting kit; use the instructions in this guide. These instructionsare critical to understanding how to install the rails in the rack andset the component into the rails.NoteMost equipment racks come with screws for mounting the chassis. You need4 10-32 screws (5/8” to 7/8” long).Determining Which Rail Kit to UseThe ARX-2500 platform comes with two types of rack mounting kits: astationary rack-mounting type and a slide-rail-mounting type. An advantageof installing the slide-rail-mounting type is that you can then slide thecomponent in and out of the rack as needed.